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This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.

This activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Science fair project that examines oxidation, reduction and chemical indicators by testing for the presence of the iodide in salt.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

This experiment investigates if small changes in your diet can alter your basal body temperature.

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

This experiment investigates whether font choice affects peoplesâ ability to remember the information that they read.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

This experiment will use computers to examine how the famous Mandelbrot set can be manipulated in fractals.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

Construct and experiment with a periscope using reflected light rays to gather an image.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

Can cells be frozen? This science fair project provides information to answer this question.

This science fair project idea measures physical dexterity as a function of temperature.